Electrical Interface Specification; Power Connector - Hitachi HUS151473VL3800 - Ultrastar 73.4 GB Hard Drive Specifications

7.0 Electrical interface specification

7.1 Power connector

The power connector of 68-pin models complies with the SFF-8009 Rev. 2.0. Power pin assignment of 68-pin models is as
shown below.
80-pin SCA-2 models use a Molex p/n 87641-0021 or DDK p/n HD2PF80-A11 connector, and 68 pin models use DDK p/n
HDW-RB68124G connector, which is compatible with the specification of "Single Attachment for Small SCSI Disk Drives"
SPI-4 document, Annex C.
Power pin assignment of the 80-pin (SCA-2) model is shown in Section 7.2.2, "SCSI signal connector (80-pin SCA-2 model)"
on page 23.
4 3 2
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
Pin Voltage
1 1 +12 V
2 GND
3 GND
4 +5V
21